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1/*
2 * Speyside audio support
3 *
4 * Copyright 2011 Wolfson Microelectronics
5 *
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License as published by the
8 * Free Software Foundation; either version 2 of the License, or (at your
9 * option) any later version.
10 */
11
12#include <sound/soc.h>
13#include <sound/soc-dapm.h>
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14#include <sound/jack.h>
15#include <linux/gpio.h>
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16
17#include "../codecs/wm8915.h"
ea3e98e7 18#include "../codecs/wm9081.h"
9b8dc66f 19
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20#define WM8915_HPSEL_GPIO 214
21
ea0a591a 22static int speyside_set_bias_level(struct snd_soc_card *card,
d4c6005f 23 struct snd_soc_dapm_context *dapm,
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24 enum snd_soc_bias_level level)
25{
26 struct snd_soc_dai *codec_dai = card->rtd[0].codec_dai;
27 int ret;
28
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29 if (dapm->dev != codec_dai->dev)
30 return 0;
31
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32 switch (level) {
33 case SND_SOC_BIAS_STANDBY:
1e025a36 34 ret = snd_soc_dai_set_sysclk(codec_dai, WM8915_SYSCLK_MCLK2,
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35 32768, SND_SOC_CLOCK_IN);
36 if (ret < 0)
37 return ret;
38
1e025a36 39 ret = snd_soc_dai_set_pll(codec_dai, WM8915_FLL_MCLK2,
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40 0, 0, 0);
41 if (ret < 0) {
42 pr_err("Failed to stop FLL\n");
43 return ret;
44 }
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45 break;
46
47 default:
48 break;
49 }
50
51 return 0;
52}
53
54static int speyside_set_bias_level_post(struct snd_soc_card *card,
55 struct snd_soc_dapm_context *dapm,
56 enum snd_soc_bias_level level)
57{
58 struct snd_soc_dai *codec_dai = card->rtd[0].codec_dai;
59 int ret;
60
61 if (dapm->dev != codec_dai->dev)
62 return 0;
63
64 switch (level) {
65 case SND_SOC_BIAS_PREPARE:
66 if (card->dapm.bias_level == SND_SOC_BIAS_STANDBY) {
67 ret = snd_soc_dai_set_pll(codec_dai, 0,
68 WM8915_FLL_MCLK2,
69 32768, 48000 * 256);
70 if (ret < 0) {
71 pr_err("Failed to start FLL\n");
72 return ret;
73 }
74
75 ret = snd_soc_dai_set_sysclk(codec_dai,
76 WM8915_SYSCLK_FLL,
77 48000 * 256,
78 SND_SOC_CLOCK_IN);
79 if (ret < 0)
80 return ret;
81 }
82 break;
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83
84 default:
85 break;
86 }
87
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88 card->dapm.bias_level = level;
89
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90 return 0;
91}
92
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93static int speyside_hw_params(struct snd_pcm_substream *substream,
94 struct snd_pcm_hw_params *params)
95{
96 struct snd_soc_pcm_runtime *rtd = substream->private_data;
97 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
98 struct snd_soc_dai *codec_dai = rtd->codec_dai;
99 int ret;
100
101 ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S
102 | SND_SOC_DAIFMT_NB_NF
103 | SND_SOC_DAIFMT_CBM_CFM);
104 if (ret < 0)
105 return ret;
106
107 ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S
108 | SND_SOC_DAIFMT_NB_NF
109 | SND_SOC_DAIFMT_CBM_CFM);
110 if (ret < 0)
111 return ret;
112
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113 return 0;
114}
115
116static struct snd_soc_ops speyside_ops = {
117 .hw_params = speyside_hw_params,
118};
119
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120static struct snd_soc_jack speyside_headset;
121
122/* Headset jack detection DAPM pins */
123static struct snd_soc_jack_pin speyside_headset_pins[] = {
124 {
125 .pin = "Headset Mic",
126 .mask = SND_JACK_MICROPHONE,
127 },
128 {
129 .pin = "Headphone",
130 .mask = SND_JACK_HEADPHONE,
131 },
132};
133
134/* Default the headphone selection to active high */
135static int speyside_jack_polarity;
136
137static int speyside_get_micbias(struct snd_soc_dapm_widget *source,
138 struct snd_soc_dapm_widget *sink)
139{
140 if (speyside_jack_polarity && (strcmp(source->name, "MICB1") == 0))
141 return 1;
142 if (!speyside_jack_polarity && (strcmp(source->name, "MICB2") == 0))
143 return 1;
144
145 return 0;
146}
147
148static void speyside_set_polarity(struct snd_soc_codec *codec,
149 int polarity)
150{
151 speyside_jack_polarity = !polarity;
152 gpio_direction_output(WM8915_HPSEL_GPIO, speyside_jack_polarity);
153
154 /* Re-run DAPM to make sure we're using the correct mic bias */
155 snd_soc_dapm_sync(&codec->dapm);
156}
157
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158static int speyside_wm8915_init(struct snd_soc_pcm_runtime *rtd)
159{
160 struct snd_soc_dai *dai = rtd->codec_dai;
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161 struct snd_soc_codec *codec = rtd->codec;
162 int ret;
163
1e025a36 164 ret = snd_soc_dai_set_sysclk(dai, WM8915_SYSCLK_MCLK2, 32768, 0);
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165 if (ret < 0)
166 return ret;
167
168 ret = gpio_request(WM8915_HPSEL_GPIO, "HP_SEL");
169 if (ret != 0)
170 pr_err("Failed to request HP_SEL GPIO: %d\n", ret);
171 gpio_direction_output(WM8915_HPSEL_GPIO, speyside_jack_polarity);
ea0a591a 172
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173 ret = snd_soc_jack_new(codec, "Headset",
174 SND_JACK_HEADSET | SND_JACK_BTN_0,
175 &speyside_headset);
176 if (ret)
177 return ret;
178
179 ret = snd_soc_jack_add_pins(&speyside_headset,
180 ARRAY_SIZE(speyside_headset_pins),
181 speyside_headset_pins);
182 if (ret)
183 return ret;
184
185 wm8915_detect(codec, &speyside_headset, speyside_set_polarity);
186
187 return 0;
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188}
189
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190static int speyside_late_probe(struct snd_soc_card *card)
191{
192 snd_soc_dapm_ignore_suspend(&card->dapm, "Headphone");
193 snd_soc_dapm_ignore_suspend(&card->dapm, "Headset Mic");
194 snd_soc_dapm_ignore_suspend(&card->dapm, "Main AMIC");
195 snd_soc_dapm_ignore_suspend(&card->dapm, "Main DMIC");
196 snd_soc_dapm_ignore_suspend(&card->dapm, "Speaker");
197 snd_soc_dapm_ignore_suspend(&card->dapm, "WM1250 Output");
198 snd_soc_dapm_ignore_suspend(&card->dapm, "WM1250 Input");
199
200 return 0;
201}
202
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203static struct snd_soc_dai_link speyside_dai[] = {
204 {
205 .name = "CPU",
206 .stream_name = "CPU",
207 .cpu_dai_name = "samsung-i2s.0",
208 .codec_dai_name = "wm8915-aif1",
209 .platform_name = "samsung-audio",
210 .codec_name = "wm8915.1-001a",
ea0a591a 211 .init = speyside_wm8915_init,
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212 .ops = &speyside_ops,
213 },
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214 {
215 .name = "Baseband",
216 .stream_name = "Baseband",
217 .cpu_dai_name = "wm8915-aif2",
218 .codec_dai_name = "wm1250-ev1",
219 .codec_name = "wm1250-ev1.1-0027",
556e4fb1 220 .ops = &speyside_ops,
b7a5d14c 221 .ignore_suspend = 1,
556e4fb1 222 },
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223};
224
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225static int speyside_wm9081_init(struct snd_soc_dapm_context *dapm)
226{
227 snd_soc_dapm_nc_pin(dapm, "LINEOUT");
228
229 /* At any time the WM9081 is active it will have this clock */
230 return snd_soc_codec_set_sysclk(dapm->codec, WM9081_SYSCLK_MCLK,
231 48000 * 256, 0);
232}
233
234static struct snd_soc_aux_dev speyside_aux_dev[] = {
235 {
236 .name = "wm9081",
237 .codec_name = "wm9081.1-006c",
238 .init = speyside_wm9081_init,
239 },
240};
241
242static struct snd_soc_codec_conf speyside_codec_conf[] = {
243 {
244 .dev_name = "wm9081.1-006c",
245 .name_prefix = "Sub",
246 },
247};
248
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249static const struct snd_kcontrol_new controls[] = {
250 SOC_DAPM_PIN_SWITCH("Main Speaker"),
251 SOC_DAPM_PIN_SWITCH("Main DMIC"),
252 SOC_DAPM_PIN_SWITCH("Main AMIC"),
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253 SOC_DAPM_PIN_SWITCH("WM1250 Input"),
254 SOC_DAPM_PIN_SWITCH("WM1250 Output"),
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255};
256
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257static struct snd_soc_dapm_widget widgets[] = {
258 SND_SOC_DAPM_HP("Headphone", NULL),
68688e78 259 SND_SOC_DAPM_MIC("Headset Mic", NULL),
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260
261 SND_SOC_DAPM_SPK("Main Speaker", NULL),
262
263 SND_SOC_DAPM_MIC("Main AMIC", NULL),
264 SND_SOC_DAPM_MIC("Main DMIC", NULL),
265};
266
267static struct snd_soc_dapm_route audio_paths[] = {
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268 { "IN1RN", NULL, "MICB1" },
269 { "IN1RP", NULL, "MICB1" },
270 { "IN1RN", NULL, "MICB2" },
271 { "IN1RP", NULL, "MICB2" },
272 { "MICB1", NULL, "Headset Mic", speyside_get_micbias },
273 { "MICB2", NULL, "Headset Mic", speyside_get_micbias },
274
ecfb1adf 275 { "IN1LP", NULL, "MICB2" },
68688e78 276 { "IN1RN", NULL, "MICB1" },
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277 { "MICB2", NULL, "Main AMIC" },
278
279 { "DMIC1DAT", NULL, "MICB1" },
280 { "DMIC2DAT", NULL, "MICB1" },
281 { "MICB1", NULL, "Main DMIC" },
282
283 { "Headphone", NULL, "HPOUT1L" },
284 { "Headphone", NULL, "HPOUT1R" },
285
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286 { "Sub IN1", NULL, "HPOUT2L" },
287 { "Sub IN2", NULL, "HPOUT2R" },
288
289 { "Main Speaker", NULL, "Sub SPKN" },
290 { "Main Speaker", NULL, "Sub SPKP" },
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291 { "Main Speaker", NULL, "SPKDAT" },
292};
293
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294static struct snd_soc_card speyside = {
295 .name = "Speyside",
296 .dai_link = speyside_dai,
297 .num_links = ARRAY_SIZE(speyside_dai),
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298 .aux_dev = speyside_aux_dev,
299 .num_aux_devs = ARRAY_SIZE(speyside_aux_dev),
300 .codec_conf = speyside_codec_conf,
301 .num_configs = ARRAY_SIZE(speyside_codec_conf),
ecfb1adf 302
ea0a591a 303 .set_bias_level = speyside_set_bias_level,
995e54f5 304 .set_bias_level_post = speyside_set_bias_level_post,
ea0a591a 305
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306 .controls = controls,
307 .num_controls = ARRAY_SIZE(controls),
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308 .dapm_widgets = widgets,
309 .num_dapm_widgets = ARRAY_SIZE(widgets),
310 .dapm_routes = audio_paths,
311 .num_dapm_routes = ARRAY_SIZE(audio_paths),
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312
313 .late_probe = speyside_late_probe,
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314};
315
316static __devinit int speyside_probe(struct platform_device *pdev)
317{
318 struct snd_soc_card *card = &speyside;
319 int ret;
320
321 card->dev = &pdev->dev;
322
323 ret = snd_soc_register_card(card);
324 if (ret) {
325 dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
326 ret);
327 return ret;
328 }
329
330 return 0;
331}
332
333static int __devexit speyside_remove(struct platform_device *pdev)
334{
335 struct snd_soc_card *card = platform_get_drvdata(pdev);
336
337 snd_soc_unregister_card(card);
338
339 return 0;
340}
341
342static struct platform_driver speyside_driver = {
343 .driver = {
344 .name = "speyside",
345 .owner = THIS_MODULE,
346 .pm = &snd_soc_pm_ops,
347 },
348 .probe = speyside_probe,
349 .remove = __devexit_p(speyside_remove),
350};
351
352static int __init speyside_audio_init(void)
353{
354 return platform_driver_register(&speyside_driver);
355}
356module_init(speyside_audio_init);
357
358static void __exit speyside_audio_exit(void)
359{
360 platform_driver_unregister(&speyside_driver);
361}
362module_exit(speyside_audio_exit);
363
364MODULE_DESCRIPTION("Speyside audio support");
365MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
366MODULE_LICENSE("GPL");
367MODULE_ALIAS("platform:speyside");